Have you not heard? Not wearing white after Labor Day is as antiquated as having your milk delivered. A crisp white trainer can look great with an ensemble of grey flannel, a dark topcoat or even an inky puffer and track pants. This best-selling Race Runner from Balenciaga is a nice option for the Fall with a touch of grassy green flanking the rear heel and rubber sole. The upper consists of cozy knit, elastic and leather. Available now at FarFetch.com.